Base 3 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
445: | \[{3^{445}-1\over2}\] | 112 × 179 × 477126751861<12> × 1611479891519807<16> × 2912333801178961<16> × 5042939439565996049162197<25> × 426094954433742383225998657061734259330885556208287344501350235478912326228730053109968418183037368082236451865292760730923476829114447283341<141> |